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GMCinema · 26-02-2010, 23:05

My incloming levels were "too high" and during the first engineer visit I had installed two Forward Path Equalizers: one -4dB and another -8dB in line summing up to -12dB peak.

Now the levels indicated by the modem are down to around +2dB from around +10dB. This leads me to the question weather the Equalizers are the right choice as they are highly frequency dependent in their attenuation characteristics and normally tune/equalize signalling in long cable runs at set frequencies. Should it not be Forward Path Attenuators to be utilised as they have a linear attenuation over the utilised frequency range?

26-02-2010, 23:05	#9
GMCinema Inactive Join Date: Nov 2009 Posts: 31	Re: 50MB deteriorating SNR My incloming levels were "too high" and during the first engineer visit I had installed two Forward Path Equalizers: one -4dB and another -8dB in line summing up to -12dB peak. Now the levels indicated by the modem are down to around +2dB from around +10dB. This leads me to the question weather the Equalizers are the right choice as they are highly frequency dependent in their attenuation characteristics and normally tune/equalize signalling in long cable runs at set frequencies. Should it not be Forward Path Attenuators to be utilised as they have a linear attenuation over the utilised frequency range?